EP 1575037 A2 20050914 - Optical disk device and optical disk
Title (en)
Optical disk device and optical disk
Title (de)
Optische Plattenvorrichtung und optische Platte
Title (fr)
Dispositif pour disque optique et disque optique
Publication
Application
Priority
- JP 2004065373 A 20040309
- JP 2004065378 A 20040309
Abstract (en)
In an optical disk of HD-DVD, data is recorded in both grooves and lands. A groove track includes its own data region called a groove (G) track address system formed therein and a land track includes its own data region called a land (L) track address system formed therein. When tracing a groove track, address information X is read from the G track address system, and also address information Y is read from the L track address system. If neither relationship X=Y or X=Y+1 is satisfied, it is determined that the address information X includes an error. Further, a groove track includes its own data region called a groove (G) track address system having a parity bit formed therein and a land track includes its own data region called a land (L) track address system having a parity bit formed therein. When tracing a groove track, address information X is read from the G track address system, and also address information Y is read from the L track address system. Even when the parity is correct, if neither relationship X=Y or X=Y+1 is satisfied, it is determined that the address information X includes an error.
IPC 1-7
IPC 8 full level
G11B 5/09 (2006.01); G11B 7/00 (2006.01); G11B 7/005 (2006.01); G11B 7/007 (2006.01); G11B 7/09 (2006.01); G11B 7/24082 (2013.01); G11B 20/10 (2006.01); G11B 20/14 (2006.01); G11B 20/18 (2006.01); G11B 27/19 (2006.01); G11B 27/24 (2006.01)
CPC (source: EP KR US)
E04G 11/50 (2013.01 - KR); E04G 17/02 (2013.01 - KR); G11B 7/0053 (2013.01 - EP US); G11B 7/00718 (2013.01 - EP US); G11B 7/24082 (2013.01 - EP US); G11B 27/24 (2013.01 - EP US); G11B 2220/2562 (2013.01 - EP US); G11B 2220/2579 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1575037 A2 20050914; EP 1575037 A3 20090318; CN 1331119 C 20070808; CN 1667711 A 20050914; KR 100647831 B1 20061123; KR 20060043501 A 20060515; TW 200531047 A 20050916; TW I289299 B 20071101; US 2005201232 A1 20050915; US 7355947 B2 20080408
DOCDB simple family (application)
EP 05251388 A 20050308; CN 200510052949 A 20050302; KR 20050019015 A 20050308; TW 94106408 A 20050303; US 7895005 A 20050309